MX9404250A - HIDING A LOST PICTURE. - Google Patents

HIDING A LOST PICTURE.

Info

Publication number
MX9404250A
MX9404250A MX9404250A MX9404250A MX9404250A MX 9404250 A MX9404250 A MX 9404250A MX 9404250 A MX9404250 A MX 9404250A MX 9404250 A MX9404250 A MX 9404250A MX 9404250 A MX9404250 A MX 9404250A
Authority
MX
Mexico
Prior art keywords
frame
hiding
internal state
state variables
receiver
Prior art date
Application number
MX9404250A
Other languages
Spanish (es)
Inventor
Karl Torbjorn Wigren
Rolf Anders Bergstrom
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE9302025A external-priority patent/SE501340C2/en
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of MX9404250A publication Critical patent/MX9404250A/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Noise Elimination (AREA)
  • Special Wing (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Un receptor en un sistema de comunicación de radio a base de cuadros queincluye un descodificador de voz del tipo de fuente-filtro que secontrola por medios (20, 22, 24) que incluyen variables de estado internoactualizadas sobre una base de cuadro por cuadro para modificar losparámetros que definen el filtro recibidos que representan los sonidos defondo transmitidos a través de un canal de comunicación. El receptorincluye un medio (14) para detectar la pérdida del cuadro y un medio (18)para ocultar los efectos de la pérdida del cuadro restringiendo laactualización de por lo menos una de las variables de estado interno.A receiver in a frame-based radio communication system that includes a source-filter type voice decoder that is controlled by means (20, 22, 24) that include internal state variables updated on a frame-by-frame basis to modify The parameters that define the received filter that represent the background sounds transmitted through a communication channel. The receiver includes a means (14) to detect frame loss and a means (18) to hide the effects of frame loss by restricting the updating of at least one of the internal state variables.

MX9404250A 1993-06-11 1994-06-06 HIDING A LOST PICTURE. MX9404250A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9302025A SE501340C2 (en) 1993-06-11 1993-06-11 Hiding transmission errors in a speech decoder
SE9304058A SE503547C2 (en) 1993-06-11 1993-12-06 Device and method for concealing lost frames

Publications (1)

Publication Number Publication Date
MX9404250A true MX9404250A (en) 1995-01-31

Family

ID=26661771

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9404250A MX9404250A (en) 1993-06-11 1994-06-06 HIDING A LOST PICTURE.

Country Status (20)

Country Link
US (1) US5596678A (en)
EP (1) EP0655161B1 (en)
JP (1) JPH08500234A (en)
KR (1) KR100220376B1 (en)
CN (1) CN1064770C (en)
AU (1) AU670698B2 (en)
CA (1) CA2140363A1 (en)
DE (1) DE69421501T2 (en)
DK (1) DK0655161T3 (en)
ES (1) ES2141326T3 (en)
FI (1) FI950591A0 (en)
GR (1) GR3031787T3 (en)
HK (1) HK1014071A1 (en)
MX (1) MX9404250A (en)
NZ (1) NZ267734A (en)
RU (1) RU2120141C1 (en)
SE (1) SE503547C2 (en)
SG (1) SG43802A1 (en)
TW (1) TW243570B (en)
WO (1) WO1994029850A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1100396C (en) * 1995-05-22 2003-01-29 Ntt移动通信网株式会社 Sound decoding device
JPH09312604A (en) * 1996-05-21 1997-12-02 Oki Electric Ind Co Ltd Controller for intermittent transmission
SE513520C2 (en) * 1998-05-14 2000-09-25 Ericsson Telefon Ab L M Method and apparatus for masking delayed packages
GB2337904B (en) 1998-05-29 2003-03-12 Nec Technologies Frame erasure for digital data transmision systems
GB2348087B (en) * 1999-03-13 2003-08-13 Nec Technologies Detection of unreliable frames in digital data transmission systems
DE10026904A1 (en) 2000-04-28 2002-01-03 Deutsche Telekom Ag Calculating gain for encoded speech transmission by dividing into signal sections and determining weighting factor from periodicity and stationarity
EP1199709A1 (en) 2000-10-20 2002-04-24 Telefonaktiebolaget Lm Ericsson Error Concealment in relation to decoding of encoded acoustic signals
EP1746751B1 (en) * 2004-06-02 2009-09-30 Panasonic Corporation Audio data receiving apparatus and audio data receiving method
CA2596341C (en) 2005-01-31 2013-12-03 Sonorit Aps Method for concatenating frames in communication system
WO2007077841A1 (en) * 2005-12-27 2007-07-12 Matsushita Electric Industrial Co., Ltd. Audio decoding device and audio decoding method
TWI315629B (en) 2006-01-09 2009-10-01 Silicon Motion Inc System and method for processing digital rights management files
KR20080075050A (en) * 2007-02-10 2008-08-14 삼성전자주식회사 Method and apparatus for updating parameter of error frame
KR20100006492A (en) 2008-07-09 2010-01-19 삼성전자주식회사 Method and apparatus for deciding encoding mode
US10218327B2 (en) * 2011-01-10 2019-02-26 Zhinian Jing Dynamic enhancement of audio (DAE) in headset systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281218A (en) * 1979-10-26 1981-07-28 Bell Telephone Laboratories, Incorporated Speech-nonspeech detector-classifier
US4357491A (en) * 1980-09-16 1982-11-02 Northern Telecom Limited Method of and apparatus for detecting speech in a voice channel signal
GB2239971B (en) * 1989-12-06 1993-09-29 Ca Nat Research Council System for separating speech from background noise
US5097507A (en) * 1989-12-22 1992-03-17 General Electric Company Fading bit error protection for digital cellular multi-pulse speech coder

Also Published As

Publication number Publication date
JPH08500234A (en) 1996-01-09
NZ267734A (en) 1996-06-25
SG43802A1 (en) 1997-11-14
SE503547C2 (en) 1996-07-01
HK1014071A1 (en) 1999-09-17
AU7011594A (en) 1995-01-03
DK0655161T3 (en) 2000-01-03
TW243570B (en) 1995-03-21
SE9304058L (en) 1994-12-12
WO1994029850A1 (en) 1994-12-22
CA2140363A1 (en) 1994-12-22
US5596678A (en) 1997-01-21
KR100220376B1 (en) 1999-09-15
CN1110884A (en) 1995-10-25
FI950591A (en) 1995-02-10
AU670698B2 (en) 1996-07-25
CN1064770C (en) 2001-04-18
KR960700499A (en) 1996-01-20
RU2120141C1 (en) 1998-10-10
DE69421501D1 (en) 1999-12-09
SE9304058D0 (en) 1993-12-06
ES2141326T3 (en) 2000-03-16
GR3031787T3 (en) 2000-02-29
FI950591A0 (en) 1995-02-10
DE69421501T2 (en) 2000-07-06
EP0655161B1 (en) 1999-11-03
EP0655161A1 (en) 1995-05-31

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